Click the References tab..
To use an existing text as an index entry, select the text.
Or to enter your text as an index entry, click at the point where you want the index entry inserted.
Click the Mark Entry button.
Type or edit the entry.
To mark the index entry, click Mark or Mark All for all similar text.
Go to the page where you want to display your Index.
Click the Insert Index button.
Click the Index tab, and the select any options you want.
Click OK.